National Measurement Institute

Certificates of approval

Find a certificate of approval. We issue one for every measuring instrument that meets the pattern approval requirements.
Page 54 of 67
. Showing 2651 to 2700 out of 3331 results.
Approval/revision date Status Pattern approval number and instrument certificate Category Sub-category
Cancelled 6/5/12: Salter Weighing Instrument Model 237T 6 - Weighing instruments 6/5 - Counter machines freely-suspended
Expired 6/5/12A: Salter Model 610T Weighing Instrument 6 - Weighing instruments 6/5 - Counter machines freely-suspended
Expired 6/5/13: RCM Model SW12 Weighing Instrument 6 - Weighing instruments 6/5 - Counter machines freely-suspended
Cancelled 6/5/100: Salter Model 40T Spring Balance 6 - Weighing instruments 6/5 - Counter machines freely-suspended
Cancelled 6/5/101: Salter 236T Trade Spring Balance 6 - Weighing instruments 6/5 - Counter machines freely-suspended
Cancelled 6/5/102: Austral Hanging Scale 6 - Weighing instruments 6/5 - Counter machines freely-suspended
Cancelled 6/5/103: Chatillon Spring Balance 6 - Weighing instruments 6/5 - Counter machines freely-suspended
Cancelled 6/5/104: Dayton Model 40 Octagon Spring Balance 6 - Weighing instruments 6/5 - Counter machines freely-suspended
Cancelled 6/5/105: Salter Spring Balance Model 285T 6 - Weighing instruments 6/5 - Counter machines freely-suspended
Cancelled 6/5/116: Salter Spring Balance Type 260T 6 - Weighing instruments 6/5 - Counter machines freely-suspended
Cancelled 6/5/119: Waymaster Spring Balance Models 10/10T and 10/20T 6 - Weighing instruments 6/5 - Counter machines freely-suspended
Cancelled 6/5/120: Waymaster Spring Balance, 100, 200 and 400-lb 6 - Weighing instruments 6/5 - Counter machines freely-suspended
Cancelled 6/5/121: Salter Model 250 Counter Scale 6 - Weighing instruments 6/5 - Counter machines freely-suspended
Cancelled 6/5A/1: Bizerba Model CD 8000S Weighing Instrument 6 - Weighing instruments 6/5A - Obsolete (now 6/5/ - was for electronic suspended scales)
Cancelled 6/5A/2: Avery Model A500 Weighing Instrument 6 - Weighing instruments 6/5A - Obsolete (now 6/5/ - was for electronic suspended scales)
Expired 6/5A/3: Digi Model DS-580 Weighing Instrument 6 - Weighing instruments 6/5A - Obsolete (now 6/5/ - was for electronic suspended scales)
Cancelled 6/9A/1: Portable Platform Weighing Machine Mercury Model 692 and variants 1 to 3 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/3: Avery Hopper Weigher and Variants 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/4: Mercury Weighing Instrument Model 522D 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/5: Avery Weighing Instrument Model 3550/ABW 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/7: Mercury Weighing Instrument Model 211 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/8: Mercury Weighing Instrument Model 600 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/9: J.W. Wedderburn Weighing Instrument Model LW1 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/10: Brecknell Model 721 Portable Weighing Instrument 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/11: Avery Type 3552AAG Non-self-indicating Weighing Instrument 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/12: Brecknell Model 552AAG Weighing Instrument 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/100: Avery 3550 AAA Bench Platform Weighing Machine 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/101: Avery 3630 LW Portable Platform Scale 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/103: Avery 4760 ABT Platform Weighing Machine 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/104: Avery 3901 AFG Portable Platform Scale 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/105: Avery 3205 ABA Portable Platform Scale 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/106: Fairway Platform Weighing Machine Model 522 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/107: Ajax Platform Scale 6 cwt Model AF1 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/108: Ajax Platform Scale 2 cwt Model F5 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/109: Mercury Counter Platform Weighing Machine Models 211S and 211F 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/110: Mercury Portable Platform Weighing Machine 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/113: Brecknell Type 184 Sensitive Platform Weighing Machine 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/115: Thornton Platform Scale Type 600 LW 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/116: Howe Richardson Model SP-K (Printbeam) Grain Hopper Scale 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/117: Avery 4802 DBX Heavy-duty Hopper Scale 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/119: E. & A. Ashworth Platform Scale Model N20R 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/121: Carnegie & Layton Platform Scale 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/125: Hawke Dormant Weighing Machine 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/128: J. W. Wedderburn 250-lb Loose-weight Platform Scale 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/135: Stathmos Platform Scale Models 493 and 513-493 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/140: Ashworth Ross Platform Scale Types 213 and 214 also known as Duros Platform Scale 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/143: James Wedderburn 210-lb Counter Platform Scale 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/144: James Wedderburn 6-cwt Platform Weighing Machine 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/145: Fairway 20-cwt Platform Scale 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 6/9A/146: Hawke Platform Scale 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Showing 2651 - 2700 of 3331 results

Instrument types

About certificates of approval

We issue a certificate of approval for every measuring instrument that meets pattern approval requirements.

Certificates of approval usually comprise:

  • a certificate including the advice and conditions of approval
  • a technical schedule that describes the pattern and any variants
  • a test procedure with the tests (not already covered by other published test procedures) used to verify the instrument and the maximum permissible errors of the instrument.

The types of certificates are:

  • certificates of approval for a specific variant of measuring instrument
  • supplementary certificates of approval for pattern approved modules that connect to measuring instruments
  • general certificates for instruments made to a common standard.

Certificate status:

  • Interim certificates are valid for a limited period.
  • Cancelled and expired certificates are not valid for new instruments (you can check certificates to check their validity).
  • Withdrawn certificates are not valid for any instruments (including those which may have been installed and verified prior to the withdrawal date).
  • Provisional certificates allow you to install instruments and use them for trade (under the conditions set out in the certificate) while we assess the instrument for full approval.

For accessible versions of these certificates, email our pattern approval section.

More information

Once you have a certificate of approval, your instrument will need to be verified for trade use
Find a servicing licensee to verify your instrument for trade use
Find national instrument test procedures for verifying instruments used for trade
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